(NEW YORK — February 14, 2008) — ACI Worldwide, Inc. (NASDAQ: ACIW) today announced that it will hold a conference call on February 19, 2008 at 8:30 am EST to discuss the December 31, 2007 quarterly and annual financial results. Interested persons may access a real-time audio broadcast of the teleconference at www.aciworldwide.com/investors or use the following numbers for dial-in participation: US/Canada: (800) 340-8364, International/Local: (706) 634-2207. Please provide your name, the conference name ACI Worldwide, Inc. and conference code 34083464.

There will be an encore replay available for two weeks at (800) 642-1687 for US/Canada Dial-In and (706) 645- 9291 for International/Local Dial-In participants.

Notes to editors

About ACI Worldwide, Inc.Every second of every day, ACI Worldwide solutions are at work processing electronic payments, managing risk, automating back office systems and providing application infrastructure services. ACI is a leading international provider of solutions for banking, retail and cross-industry systems. ACI serves more than 800 customers in 86 countries including many of the world's largest financial institutions, retailers and payment processors. Visit ACI Worldwide at www.aciworldwide.com.

Investor information

Copyright ACI Worldwide, Inc. 2015.ACI, ACI Payment Systems, the ACI logo, ACI Universal Payments, UP, the UP logo and all ACI product names are trademarks or registered trademarks of ACI Worldwide, Inc., or one of its subsidiaries, in the United States, other countries or both. Other parties’ trademarks referenced are the property of their respective owners.